| APA Formatting and Style Guide (Purdue) |
APA Style Guide (Cornell University) |
| Citing Sources, Guide to Library Research (Duke University) |
CSE Citation Guide |
| EasyBib |
MLA Formatting and Style Guide (Purdue) |
| MLA Style Guide (Cornell University) |
Research and Documentation Online (Bedford/St. Martin’s) |
| Son of Citation Machine |
Tweet–how to cite |
